| 自保护药芯焊丝焊接工艺参数的敏感性分析 |
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| 引用本文： | 顾玉芬,谢金龙,张恒铭,石玗. 自保护药芯焊丝焊接工艺参数的敏感性分析[J]. 焊接学报, 2019, 40(10): 25-30. DOI: 10.12073/j.hjxb.2019400258 |
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| 作者姓名： | 顾玉芬 谢金龙 张恒铭 石玗 |
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| 作者单位： | 兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050;兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050;兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050;兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050 |
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| 基金项目： | 国家自然科学基金资助项目（51765037）；甘肃省基础研究创新群体计划项目（17JR5RA107）；甘肃省高校协同创新团队项目（2017C-07） |
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| 摘 要： | 自保护药芯焊丝是一种适合于野外作业的焊接材料，广泛应用于船舶、钻井平台、石油管道、集装箱等结构件焊接及修复. 采用自保护药芯焊丝在Q235钢板表面进行单层单道平板堆焊试验，运用二次回归通用旋转组合设计方法建立了电弧电压、送丝速度、焊接速度与熔宽、余高、熔高的二次回归数学模型，分析了工艺参数与熔敷几何尺寸的关系. 结果表明，该模型能够预测稳定工艺区间内工艺参数变化对熔敷层几何尺寸的影响规律；当电压较低时，送丝速度是影响熔宽和余高的主要因素，电压较高时，焊接速度是影响熔宽和余高的主要因素.
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| 关 键 词： | 自保护药芯焊丝 二次回归数学模型 工艺参数 熔敷层几何尺寸 |
| 收稿时间： | 2018-09-25 |
Sensitivity analysis of process parameters of self-shielded flux cored wire |
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| GU Yufen,XIE Jinlong,ZHANG Hengming and SHI Yu. Sensitivity analysis of process parameters of self-shielded flux cored wire[J]. Transactions of The China Welding Institution, 2019, 40(10): 25-30. DOI: 10.12073/j.hjxb.2019400258 |
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| Authors: | GU Yufen XIE Jinlong ZHANG Hengming SHI Yu |
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| Affiliation: | State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | Self-shielded flux cored wire is a kind of welding material suitable for field project, which is widely used in welding and repair of field project such as ships, drilling platforms, oil pipelines and containers. Single-layer single-bead welding was carried out on the surface of Q235 steel by self-shielded flux cored wire, and quadratic regression mathematical model between arc voltage, wire feeding speed, welding speed and melting width, reinforcement, melting height was established by quadratic regression universal rotating combination design method. The relationship between process parameters and deposited geometries is analyzed, the results show that the model can predict the influence of process parameter variation on the geometry of the deposited layer in the stable process interval. The wire feeding speed is the main factor affecting the melting width and reinforcement at low voltage, while the welding speed is the main factor affecting the melting width and reinforcement at high voltage. |
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| Keywords: | self-shielded flux cored wire quadratic regression mathematical model process parameters deposited geometries |
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